In scheduler view, there is a refresher that checks if any executions have changed and refreshes the table accordingly. This works until schedule detail window is opened (e.g. new schedule, edit schedule)
When schedule detail window is opened, refresher is removed - I suppose this is correct there is no need to refresh the table when modal window is opened.
However when detail window is closed, refresher is not restored and thus table will never be refreshed again (until browser refresh or UV menu click)